Population dynamic of green tiger prawn, Penaeus semisulcatus (De Haan) in Bushehr coastal waters, Persian Gulf

Niamaimandi, Nassir and Arshad, Aziz and Daud, Siti Khalijah and Saad, Che Roos and Kiabi, Bahram (2007) Population dynamic of green tiger prawn, Penaeus semisulcatus (De Haan) in Bushehr coastal waters, Persian Gulf. Fisheries Research, 86 (2-3). pp. 105-112. ISSN 0165-7836

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Official URL: http://dx.doi.org/10.1016/j.fishres.2007.05.007

Abstract

Monthly carapace length frequency data of green tiger prawn, Penaeus semisulcatus were collected from the coastal waters of Bushehr, Persian Gulf, from January 2002 to March 2003. ELEFAN in the software package FiSAT was used to analyse of their length frequency data. The L∞ and K for males were estimated at 38 mm CL and 1.6 year−1, respectively and for the females 50.40 mm CL and 2.20 year−1. Using the L∞ and K estimates for both sexes and average water temperature of 24.1 °C the instantaneous rate of natural mortality (M) for males and females were calculated as 2.11 and 2.41 year−1, respectively. The instantaneous rates of total mortalities (Z) were estimated from length-converted catch curves and the values at 6.4 year−1 for males and 8.2 year−1 for females, and the instantaneous rates of fishing mortalities (F) for males were 4.3 year−1 and for females 5.8 year−1. Thus, the exploitation rates (E) were 0.67 year−1 and 0.7 year−1 for males and females, respectively. Maximum age (Tmax) was 20 months for the males and 15 months for the females. Based on the results of the present study, P. semisulcatus growth is rapid during summer and autumn and negligible during winter and spring. Natural mortality rates were not grossly different for both sexes, although the males were more vulnerable to fishing than the females. Also the results showed that P. semisulcatus was overexploited in the study area. The exploitation of P. semisulcatus in Bushehr waters is intended to protect the spawners and juveniles stock for renewal.

Item Type:Article
Keyword:Population dynamics, P. semisulcatus, Persian Gulf, Iranian waters
Faculty or Institute:Faculty of Science
Publisher:Elsevier
DOI Number:10.1016/j.fishres.2007.05.007
ID Code:7267
Deposited By: Najwani Amir Sariffudin
Deposited On:14 Jun 2010 08:18
Last Modified:27 Jul 2010 04:22

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